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Chemistry

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Queenie Botsford

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Cards in this guide (19)
How is electroplating done

the metal on which electroplating is to be done is taken as cathode ( negative electrode) . the metal of which electroplating is to be done is taken as anode ( positive electrode) and the salt solution of the metal of which electroplating is to be done is taken as electrolyte .

example-

if we want to electroplate iron with copper then iron is taken as cathode and copper is taken as anode and electrolyte is copper sulphate.Electroplating is the process of plating one metal onto another by hydrolysis, most commonly for decorative purposes. This is done through the use of copper in a copper sulfate bath.

What best describes a bond formed between two unlike atoms

The type of bond is determined by the difference in electrongativity of atoms

How many total electrons can the d orbitals hold

10

Which method of drawing hydrocarbons is the fastest to draw

the stick model method

How does the shape of a molecule affect the polarity of the molecule

C.A molecule that has a symmetrical shape will be a nonpolar molecule.

What types of anode

the two types of anode is stationary anode and rotating anode

Why are prefixes used in naming covalent compounds

The same atoms can combine in more than one ratio.

How do hydrogen bonds compare with other intermolecular forces

Hydrogen bonds are stronger than dipole-dipole and Van der Waals forces.

Which 2 atoms form a covalent bond

If the electronegativity difference between two atoms is below 1.7, then the two atoms form covalent bond.

What is a trend seen in the periodic table

electronegativity

What would be the percent yield of the reaction be if the theoretical yield is 11.22 g but the actual yield was 8.67 g

In this case the yield is 77,27 %.

What is the correct electron configuration for an element with 5 electrons in the 3d energy sublevel

1s22s22p63s23p64s23d5

Which of the following has the smallest radius is K plus Rb Rb plus K

K+

When would dipole dipole be significant

Dipole-dipole forces play a significant role when a molecule is polar.

Which of the following has the largest radius K plus Na plus Na or K

Potassium has the largest atomic radius.

In the reaction mgcl2 plus 2koh mgoh2 mgoh2 plus 2kcl if 3 moles mgcl2 are added to 4 moles koh what determined how much mgoh2 is made

The amount of Koh

How would 0.000000728 be written in scientific notation

It is 7.28*10^-7 in scientific notation

What of the following best describes electroplating

Depositing one metal on another

what two things can make a molecule polar

Answer 1:The presence of polar bonds

Answer 2:The shape of the molecule

Apex

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